For serious shooters USA Ammunition is the ideal choice for training competition or a long session at the range. The easily identifiable white box means high quality and reliability at a low price. This ammunition is loaded with a full metal jacket bullet which is known for its positive functioning and exceptional accuracy. On impact this bullet does not expand and is ideal for target shooting. This ammunition is new production non-corrosive in boxer primed reloadable brass cases. – Caliber: 5.56x45mm NATO – Bullet Type: Full Metal Jacket – Bullet Weight: 55 gr – Muzzle Energy: 1306 ft / lbs – Muzzle Velocity: 3270 fps – Rounds Per Box: 125